This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the drop-in replacement SAIJ200X900-20S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X900-20S
The AirTAC Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X900-20S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 900mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ200X900-20S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke900 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAIJ200X900-20S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X900-20S
The AirTAC SIJ200X900-20S is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder. Its external stop screw lets you trim the extend stroke by up to 20 mm on-site, giving a usable 880-900 mm window from the 900 mm nominal maximum. At 0.5 MPa this 200 mm bore generates 15708 N push and 15080 N pull force, features a 50 mm adjustable cushion at each end, and uses a G3/4 port with an M36x2 rod thread.
Because SIJ is end-of-life, the exact drop-in replacement is the SAIJ200X900-20S, retaining the same ISO 15552 mounting interface, bore, force, and adjust window. The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. For sizing, a safe working load is roughly 9425 N (60% of the 0.5 MPa push figure), translating to a vertical lift capacity of about 801 kg with a 2:1 margin. The stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X900-20S Technical Specifications
| Model | Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X900-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ200X900-20S |
| Bore size | Ø200 mm |
| Stroke | 900 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ200X900-20S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAIJ200X900-20S produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X900-20S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×900 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X900-20S Is Used
Heavy Press End-Position Tuning
Allows a 200 mm bore press to trim its 900 mm extend stroke by up to 20 mm on-site, ensuring exact contact without re-engineering the entire fixture.
Large Material Stop Adjustment
Provides an adjustable 880-900 mm extend stop for heavy pallets or racks, accommodating varying load dimensions while delivering 15708 N of push force.
Long-Stroke Assembly Calibration
Enables field calibration of a 900 mm assembly tooling stroke, using the external screw to set the precise lower endpoint for delicate component seating.
Replacing the Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X900-20S with the SAIJ200X900-20S
To replace the discontinued SIJ200X900-20S, order the drop-in SAIJ200X900-20S, which matches the ISO 15552 interface, 900 mm stroke, 20 mm adjust window, and G3/4 port. When sizing both ways, the neighboring 160 mm bore yields 10053 N push at 0.5 MPa, while the 200 mm bore offers 15708 N push at 0.5 MPa and 21991 N at 0.7 MPa. Select the 20 mm adjust window if you need precise 880-900 mm extend endpoint tuning. Reuse FA, LB, or TC mountings directly. The -S suffix means a piston magnet is present for CS1-B/DS1-B switches (current AirTAC switches are used on SAIJ). At 900 mm stroke, support the rod against side-load bending and use external guides to prevent premature wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ200X900-20S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ200 Double Rod Adjustable Cylinder SIJ200X900-20S FAQ
Yes, the SIJ200X900-20S is discontinued. The exact drop-in replacement is the SAIJ200X900-20S, which shares the same ISO 15552 interface, 200 mm bore, 900 mm stroke, 20 mm adjust window, and G3/4 port. The SAIJ upgrade uses an improved two Y-shaped one-way piston seal for longer life.
The 200 mm bore provides 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and 28274 N push at 0.9 MPa (theoretical max 3204 kgf at 1.0 MPa). The external stop screw window is 20 mm, allowing you to shorten the 900 mm extend stroke down to 880 mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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